Design for a roof or siding shingle



FIG. 1 is a front elevational view of a shingle showing our new design;

FIG. 2 is an end elevational view thereof;

FIG. 3 is a front elevational view of a shingle of a second embodiment showing our new design;

FIG. 4 is an end elevational view thereof;

FIG. 5 is a front elevational view of a shingle of a third embodiment showing our new design; and,

FIG. 6 is an end elevational view thereof.

The rear of the shingle is plain and unornamented. 

The ornamental design for a shingle, as shown and described. 